Features 1、Applicable Models: Designed for Microsoft Pro 7 Plus (2021),for Pro 7 (2019),for Pro 6 (2018),for Pro 5th generation (2017),for Pro 4,for Pro 3 12.3 inch tablet with slightly dispersed keys for a more familiar and efficient typing experience. 2、Wireless Bluetooth Technology: Wireless Bluetooth technology, provides high speed connection with signal distance up to 33ft. Separate keys and scissor switches will make your typing as comfortable as on a laptop, each key can support 5 million keystrokes. 3、C Charge:The charging cable connects via a C Charge cable, and the built in 350mAh battery supports continued use for 35 hours on a full charge of 2 hours. it automatically goes into sleep mode when not in use for 15 minutes. Press any key for 5 seconds to activate. 4、Touchpad: The built in touchpad of Portable keyboard gives you a touch screen experience without taking your hands away from the keyboard, making it easier to operate. 5、Ergonomic Design: Key core, PU leather, ergonomic design, simple and compact layout, quiet typing function, make your hand feel more comfortable while typing and reduce the burden on your hand. Specification Item Type: Wireless Bluetooth Keyboard Material: ABS, PU Battery Type: Lithium Ion Battery 402030 (Ship with Inbuilt Battery) Battery Capacity: 350 mAh Color: Black Suitable for: Keyboard Size Specially Designed for Microsoft pro3, for pro4, for pro5, for Pro6,for Pro7,for 7 Plus, Specially Designed, Keyboard Support Full for Windows System, Can Be Used in Many Ways Support Protocol: Bluetooth 3.0,4.0,1.1 Wireless Distance: Approx. 10meter / 33ft Charging Interface: USB C Functional Features: FN Combination of Multimedia Functions Package List 1 x keyboard 1 x Power Supply Line 1 x User Manual